shh i've recently gain so much elo mono spaming dirt. it is low key free elo. and the best part is devs are to clueles to realise that XD
but yea - there is no counter to dirtbag spam - no good counter -just accept it and join us

I'll believe it when I see your dirtbags take a game of said clueless developers.

XDD ok i guess i'm gonna enjoy more free elo then - hope u will be in enemy team

If you can't attack because the area is too clogged up with dirt, the opposing team generally can't attack either. Rotate to an unclogged lane, and/or tech to nuke or your static artillery of choice. Your opponents have spent metal to provide you with defences for it.

Being forced into a kind of game you had not planned on playing can be annoying, but as long as you stay mentally flexible and don't tilt the terrain modification from Dirtbag rarely gives your opponents an advantage which is worth the metal they spent. I don't recall ever having lost a game to it. (Though I have lost to Dirtbags as a combat unit occasionally.)

Thanks for your answer, Aquanim. Yeah, my post was about how easy it is for 3 players to force 20 players (not only the enemy team) into such kind of game, simply by using such "no-brain" strategy.